ActionScript3删除子错误(ActionScript3 remove child error)

 我最近一直在将as2 fla转换为as3（AS3的新功能）并且整个工作都在导出，但是当我尝试在加载新的swf之前删除以前加载的swf时出现错误 
 
ArgumentError: Error #2025: The supplied DisplayObject
must be a child of the caller.
at flash.display::DisplayObjectContainer/removeChild()
at MethodInfo-11()
 
 我知道错误与我的removeChild代码有关： 
 
`stage.addEventListener(MouseEvent.CLICK, removeSWF);
function removeSWF (e:MouseEvent):void 
{
if(vBox.numChildren !=0){        
   // swfLoader.unloadAndStop();
    vBox.removeChild(swfLoader);// empty the movieClip memory
}
}`
 
 但是，我似乎无法为此代码找到合适的重写，它将起作用并且没有错误。 这段代码工作正常，所以我不确定是否值得花时间修复此错误，或者只是保留它。 我已经搞砸了几天了，所以在这一点上我无法解决这个问题让我感到沮丧。 在这种情况下，舞台鼠标单击侦听器很有用，因为我在此代码中没有显示后退按钮，在移动到另一个场景之前清除加载的swf。 有没有人看到一个简单的解决方案，或者你认为没有必要追求，因为代码符合我的要求？ 完整代码： 
 
function launchSWF(vBox, vFile):void    {
var swfLoader:Loader = new Loader();
var swfURL:URLRequest = new URLRequest(vFile);
swfLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
swfLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadProdComplete);
swfLoader.load(swfURL);

function loadProdComplete(e:Event):void {
    trace("swf file loaded");   
    vBox.removeChild(preLoader);
    vBox.addChild(swfLoader);   
    currentSWF = MovieClip(swfLoader.content);
    currentSWF.gotoAndPlay(1);
    currentSWF.addEventListener(Event.ENTER_FRAME , checkLastFrame);
    swfLoader.x = 165;
    swfLoader.y = 15;

    function checkLastFrame(e:Event):void { 
        if (currentSWF.currentFrame == currentSWF.totalFrames) {
        currentSWF.stop();
        // trace("DONE");     
        }
    }      
} 
var preLoader:loader = new loader();
preLoader.x = 450;
preLoader.y = 280;
vBox.addChild(preLoader);

        function onProgressHandler(event:ProgressEvent){
            var dataAmountLoaded:Number=event.bytesLoaded/event.bytesTotal*100;
            //preLoader.bar.scaleX = dataAmountLoaded/100;
            preLoader.lpc.text= int(dataAmountLoaded)+"%";
            //trace(preLoader.bar.scaleX );
        }   
//NEW ERRORS BUT WORKING
stage.addEventListener(MouseEvent.CLICK, removeSWF);
function removeSWF (e:MouseEvent):void 
{
if(vBox.numChildren !=0){        
   // swfLoader.unloadAndStop();
    vBox.removeChild(swfLoader);// empty the movieClip memory
}
}
}
var container:MovieClip = new MovieClip();
var currentSWF:MovieClip = new MovieClip();

fall_b.addEventListener(MouseEvent.CLICK, fall_bClick);
  function fall_bClick(e:MouseEvent):void {
  var swfFile:String = 'load/fall.swf';
  launchSWF(container, swfFile);
  addChild(container);
  }

face_b.addEventListener(MouseEvent.CLICK, face_bClick);
  function face_bClick(e:MouseEvent):void {
  var swfFile:String = 'load/face.swf';
  launchSWF(container, swfFile);
  addChild(container);
  }

rott_b.addEventListener(MouseEvent.CLICK, rott_bClick);
  function rott_bClick(e:MouseEvent):void {
  var swfFile:String = 'load/rottgut.swf';
  launchSWF(container, swfFile);
  addChild(container);
  }
//MORE SWFS...
 
 任何人的建议表示赞赏 

I recently have been converting an as2 fla to as3 (new to AS3) and have the entire thing working on export, but I am getting an error when I try to remove previously loaded swf's before a new swf is loaded
 
ArgumentError: Error #2025: The supplied DisplayObject
must be a child of the caller.
at flash.display::DisplayObjectContainer/removeChild()
at MethodInfo-11()
 
I know the error relates to my removeChild code here: 
 
`stage.addEventListener(MouseEvent.CLICK, removeSWF);
function removeSWF (e:MouseEvent):void 
{
if(vBox.numChildren !=0){        
   // swfLoader.unloadAndStop();
    vBox.removeChild(swfLoader);// empty the movieClip memory
}
}`
 
However, I cannot seem to find a suitable rewrite for this code that will work and not have an error. This code IS working, so I'm not sure if it would be worth my time to fix this error, or just leave it. I've already messed with it for a couple days, so at this point it's just frustrating me that I cannot fix it. The stage mouse click listener is useful in this case because I have a back button not shown in this code that clears the loaded swf's before moving to another scene. Does anyone see a simple solution for this, or do you think it is unnecessary to pursue since the code does what I require? ENTIRE CODE: 
 
function launchSWF(vBox, vFile):void    {
var swfLoader:Loader = new Loader();
var swfURL:URLRequest = new URLRequest(vFile);
swfLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
swfLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadProdComplete);
swfLoader.load(swfURL);

function loadProdComplete(e:Event):void {
    trace("swf file loaded");   
    vBox.removeChild(preLoader);
    vBox.addChild(swfLoader);   
    currentSWF = MovieClip(swfLoader.content);
    currentSWF.gotoAndPlay(1);
    currentSWF.addEventListener(Event.ENTER_FRAME , checkLastFrame);
    swfLoader.x = 165;
    swfLoader.y = 15;

    function checkLastFrame(e:Event):void { 
        if (currentSWF.currentFrame == currentSWF.totalFrames) {
        currentSWF.stop();
        // trace("DONE");     
        }
    }      
} 
var preLoader:loader = new loader();
preLoader.x = 450;
preLoader.y = 280;
vBox.addChild(preLoader);

        function onProgressHandler(event:ProgressEvent){
            var dataAmountLoaded:Number=event.bytesLoaded/event.bytesTotal*100;
            //preLoader.bar.scaleX = dataAmountLoaded/100;
            preLoader.lpc.text= int(dataAmountLoaded)+"%";
            //trace(preLoader.bar.scaleX );
        }   
//NEW ERRORS BUT WORKING
stage.addEventListener(MouseEvent.CLICK, removeSWF);
function removeSWF (e:MouseEvent):void 
{
if(vBox.numChildren !=0){        
   // swfLoader.unloadAndStop();
    vBox.removeChild(swfLoader);// empty the movieClip memory
}
}
}
var container:MovieClip = new MovieClip();
var currentSWF:MovieClip = new MovieClip();

fall_b.addEventListener(MouseEvent.CLICK, fall_bClick);
  function fall_bClick(e:MouseEvent):void {
  var swfFile:String = 'load/fall.swf';
  launchSWF(container, swfFile);
  addChild(container);
  }

face_b.addEventListener(MouseEvent.CLICK, face_bClick);
  function face_bClick(e:MouseEvent):void {
  var swfFile:String = 'load/face.swf';
  launchSWF(container, swfFile);
  addChild(container);
  }

rott_b.addEventListener(MouseEvent.CLICK, rott_bClick);
  function rott_bClick(e:MouseEvent):void {
  var swfFile:String = 'load/rottgut.swf';
  launchSWF(container, swfFile);
  addChild(container);
  }
//MORE SWFS...
 
Any advice anyone has is appreciated

原文：https://stackoverflow.com/questions/32258517